Results 31 to 40 of about 1,482 (145)
Influence of Valleys Terrain on Pressure of Fully Mechanized Working Faces in Shallow Coal Seams [PDF]
Shock and Vibration, 2021 The absence of a key stratum during overburden rock movement is crucial to the mining pressure of fully mechanized coal mining faces. Using physical and numerical simulations, the 21304 mechanized mining in Daliuta and Huojitu coal mining faces 1−2 appeared twice during a pressure frame accident analysis.
YingJie Liu, Qingjie Qi, Anhu Wang
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Numerical and in-situ investigation on the ground behavior of the end roof in fully mechanized caving face [PDF]
E3S Web of Conferences, 2021 Fully mechanized top coal caving is a major high-yield and high-efficiency coal mining method for thick seam mining. At present, it is affected by the further popularization and application of fully mechanized caving mining because the recovery rate is ...
Zang Chuanwei +5 more
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AIP Advances, 2020 Dust seriously affects the safe production of coal mines, and a high dust concentration operating environment is harmful to the health of miners. It is necessary to take dust reduction measures on the working surface.
Zhongliang Lu +2 more
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Mathematical model of automatic following control in the middle of fully mechanized mining face
Gong-kuang zidonghua, 2016 With consideration of bi-directional cutting characteristics of fully mechanized mining face and analysis of coordinated control of shear, hydraulic support and scraper conveyor, a mathematical model was firstly proposed to describe curved path of ...
SHI Yong +3 more
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Gong-kuang zidonghua, 2020 In the context of intelligent fully mechanized caving and mining, it is important to consider not only the cutting by the shearer, but also the coal caving at the back of the support and top coal recovery.
HAN Xiuqi +4 more
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Research progress and prospect of wet dust control technology in fully mechanized excavation face
Meikuang Anquan, 2023 The ventilation of fully mechanized roadway in coal mine is easy to cause the rapid diffusion of dust, which makes it more difficult to control dust pollution. In order to improve the working environment of fully mechanized coal mining face, the progress
ZHU Xiaotong +5 more
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Research status of intelligent technology of shearer in fully mechanized working face
Gong-kuang zidonghua, 2022 This paper introduces the research status of intelligent technology of shearer at home and abroad. Since the 1990s, the intelligent technology of shearers has entered a mature stage of development abroad, and leading innovations have been made in shearer memory cutting, coal and rock identification, airborne main control software and remote monitoring.
ZHAO Yihui, ZHAO Youjun, ZHOU Zhan
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Target detection of the fully mechanized working face based on improved YOLOv4
Gong-kuang zidonghua, 2023 The accurate detection of key equipment and personnel in the fully mechanized working face is an important link to realize the information perception of intelligent coal mining. The traditional target detection algorithm realizes the target detection by extracting the features manually.
WANG Keping +3 more
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Study on Measuring and Forecasting of Fully Mechanized Working Face Roof Pressure System
TELKOMNIKA Indonesian Journal of Electrical Engineering, 2014 China is one of the largest coal producer and consumer countries in the world. However, due to the complexity of coal resources, storage conditions, geological disaster-prone coal mines, it is also a coal mine accidents multiple country, coal mine accidents and deaths of China accounted to about 80% total of the world.
Yong Zhang, XueQiang Yang, ZengXin Wang
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Grid partition method of fully-mechanized coal mining face area and its applicatio
Gong-kuang zidonghua, 2018 In order to meet fine management requirements for fully-mechanized coal mining face production, a grid partition method of fully-mechanized coal mining face area was put forward.
QU Shijia
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